Horseshoe.



D. S. ANTHONY.

HORSESHOE.

APPLICATION mio :un: 1o. |916.

1,212,601. Patented Jan.16,1917.

wlmssfs 79. v ,Nl/Mm Mlm. A 0 a fm... @JWN i: .1| @WWW I I Arron/vm DAVID SPENCER ANTHONY, OF SIOUX CITY, IOWA.

HORSESI-IOE. A

Specification of Letters Patent. Patented Jan-,16, 1917,

Application filed June 10, 1916. Serial No. 102,897.

calk attached horseshoes so as to be reliable4 and efficient in use, comparatively simple and inexpensive to manufacture, and so designed that the calks can be easily and quickly attached without the need of any special instruments.

A more specilic object of the invention is the provision of novel calk formed with a wedge-shaped tongue or key which is adapted to be driven into and interlocked in a channel formed in the heel or toe to receive the calk, the calk and channel being formed, if desired, with surfaces which automatically interlock by mere driving of the calk into the channel.

With such objects in view, and others which will appear as the description proceeds, the invention comprises various novel features of construction and arrangement of parts which 'will be set forth with particularity in the following description and claims appended hereto.

In the accompanying drawing, which illustrates certain embodiments of the invention and wherein similar characters of reference indicate corresponding parts in all the views, Figure 1 is a bottom plan view of a horseshoe with the calks attached thereto; Figs. 2 and 3 are sectional views respectively on the lines 2-2 and 3 3, Fig. 1; Fig. 4l is albottom plan view of a modilied form of heel and calk; Fig. 5 is a vertical longitudinal section of Fig. 4; Fig. l6 is a view of the calk before it is driven in; Fig. 7 is a longitudinal section of another modified form of heel calk; Fig. 8 is a bottom plan view of still another modification,

the upper surfaces 3 of the channels-may be curved or arched, as shown in Figs. 2, 3 and 5. The heel-calks are stud-like members d of any desired form and each hasa wedge-shaped tongue or key 5 extending from one side. The toe calk 6 is in the form of a bar which has a central rearwardly extending wedge-shaped tongueor key 7 The tongues or keys of the calks may have rounded surfaces 8 to correspond to the curved surfaces of the channels. Extending across the channels arel transverse 'bars 9 which lie over the tongues and interlock therewith when the tongues of the calks are driven into their respective channels. While a driven tit may be 'relied on to hold the calks in place, it may be desirable to provide additional means. For instance, the tip 10 of the tongue of the toe calk may be upset and bent behind the rear portion 11 of the toe of the shoe, as clearly shown in Fig. 2, and a transverse shoulder 12 may be provided in the heel portion of the shoe by making a recess 13, and the tip 14 of the tongue or key of the heel calk will' be driven into the recess to interlock with the shoulder 12. Furthermore, the heel may be provided with a depending projection 15 behindwhich the rear end of the calk engages, as shown in Fig. 3.' To assist in detaching. the calks,

vil'rterlocking engagement with the shoe, and` then the `calkcan `be drawn out after the tip 14 has been out off or straightened. In

this manner the removal of a worn calk and the insertion of a new one can be done simply and expeditiously. Behind thetoe calk short lugs 17 may be formed on the shoe to give stability to the calk, which has its rear side engaged with the projections. Instead of bending the tips in the manner shown in Figs. 2 and 3, the calk-receiving channel may have an expander or splitter 18, as shown in Fig. 1, and the tongue or key 5a may have a longitudinal split 19, as shown in Fig. 6, so that when the calk is driven in, the wedgeshaped expander 11 enters the slit v19 and spreads,1to thereby prevent the calk from pulling out, since the spread extremity hugs the side-walls 20 of the channel, which diverge, as shown in Fig. l. Another means for locking the calkin place is serrations or teeth 21 and 22 in the channel and on the tongue or key of the calk, as shown in Fig.

7. Also the tongue may have a laterally extending tooth Q3 for engaging in a recess 24 in the wall of the channel, as shown in Fig. 8. In driving in the calk the tongue yields laterally, and as soon as the tooth reaches the recess it springs into the same.

In order to take the place of the proyection 15 as `shown in Fig. 3, which is subject `to wear, the body portion of the calk may haveteeth 25 on its upper surface to engage corresponding teeth in the rear portion of the channel that receives the calk,

In the construction shown in F ig. IO a 'further locking effect is secured by having in the top of the shoe.V This locking may.

be used with or without the interlocking shoulders 30 and 3l on the shoe and calk respectively.

From the foregoing description taken in connection with the accompanying drawing, the advantages of the construction and method of operation will be readily Linderstood by those skilled in the art to which the invention appertains, and while I have described the principle of operation, together with the article which I now consider to be the best embodiment thereof, I desire to have it understood that the article shown is merely illustrative and that such changes may be made when desired as fall within the scope of the appended claims.

Having thus described `my invention, I claim as new and desire to secure by Letters Patent:

1. A horseshoe having in its under surface a channel and an integral cross-bar extending across the bottom of the channel, and a calk having an integral tongue or key driven into the channel and between the top surface of the latter and the crossbar.

2. A'horseshoe having in its under surface a channel and an integral cross-bar extending across the bottom of the channel, a calk having an integral tongue or key driven into the channel and between the top surface of the latter and the cross-bar, and interlocking surfaces between the shoe and the calk.

3. A horseshoe having a channel in its under'surface and a bar extending across the channel, in combination with a calk having a wedge-shaped tongue driven into the channel and wedging between the top of the latter and Vthe cross-bar, and means for locking the calk in place. y

4. A horseshoe having a channel in its under surface and a bar extending across the channel, in combination with a calk having a wedge-shaped tongue driven into driven into the channel, and the tip of the tongue being upset to interlock with the horseshoe.

6. A horseshoe having a channel in its under surface and an integral bar extending across the channel at a point intermediate its ends, in combination with a calk having a key-like extension, and interlocking teeth between the channel and calk arranged to automatically interlock by the driving of the calk into the channel.

7. A horseshoe having a channel in its under surface, a bar extending across the channel, and a if-shaped expander at the end of the channel, in combination -with a calk having a wedge-shaped tongue driven intothe channel and engaging with the cross-bar, the tip of the tongue being spread by the said expander to interlock with the 'lateral walls of the channel.

8. A horseshoe having a channel in its under surface and the inner end of the channel being formed with an inclined .surface and opening in the top of the shoe, and an integral bar extending across the channel at a point intermediate its ends, in combination with a calk having a tongue engaging with the inclined surface and bent upwardly thereby as the calk is driven into the channel, whereby the bent end of the tongue locks the calk in place.

9. A horseshoe having a channel in its under surface and the inner end of the channel being formed with an inclined sun vface and opening in the top of the shoe, and

an integral bar extending across the channel at a point intermediate its ends, in combination with a calk having a tongue engaging with the inclined surface and bent upwardly thereby as the calk is driven into the channel, whereby the bent end of the tongue locks the calk in place, and interlocking shoulders between the calk and shoe.

10. A shoe having a channel and the inner end of the channel being formed with a surface inclined to the length of the channel, in combination with acalk having a tongue driven longitudinally of the channel, and the tip of the tongue being bent out of its normal by the inclined surface for preventing the calk from being withdrawn from the channel.

DAVID SPENCER ANTHONY.

Copies of this patent may be obtained `for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

